4-chlorobenzene-1-sulfonyl azide CAS 4547-68-6
| CAS No. | 4547-68-6 |
| Molecular Formula | C6H4ClN3O2S |
| Molecular Weight | 217.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-chlorobenzene-1-sulfonyl azide.
4-chlorobenzene-1-sulfonyl azide (CAS 4547-68-6) is a high-purity analytical reference standard with the molecular formula C6H4ClN3O2S and a molecular weight of 217.63 g/mol.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 4-chlorobenzene-1-sulfonyl azide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 217.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 4-chlorobenzene-1-sulfonyl azide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H4ClN3O2S |
| Molecular Weight | 217.63 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related chlorobenzene Standards
- 3-Chlorobenzene-1-sulfonyl isocyanate (CAS 68984-05-4)
- Ethyl 4-chlorobenzene-1-sulfonate (CAS 20443-71-4)
- 4-Chlorobenzene-sulfonmethyl-ester (CAS 15481-45-5)
- 5-acetyl-2-chlorobenzene-1-sulfonamide (CAS 2350-44-9)
- P-Chlorobenzene Arsonic Acid (CAS 5440-04-0)
- 2-Chlorobenzene-1,3,5-tricarbaldehyde (CAS 102626-20-0)
- 4-Chlorobenzene-d (CAS 544686-14-8)
- 2-Chlorobenzene-1-sulfinyl chloride (CAS 1852086-12-4)
Recommended Standards
- 4-(2-Chloro-5-fluoro-4-pyrimidinyl)morpholine (CAS 31646-53-4)
- 4-Chlorobenzenesulfonyl Isocyanate (CAS 5769-15-3)
- 4-Chlorobenzo[d]isothiazol-3(2H)-one 1,1-dioxide (CAS 3476-02-6)
- 2-Chlorobenzenesulfonylisocyanate (CAS 64900-65-8)
- 2-(4-(4-Fluorophenyl)piperazin-1-yl)-N-(p-tolyl)acetamide (CAS 303091-80-7)
- 5-Bromo-2-furoyl chloride (CAS 26726-16-9)
- 1-Bromo-4-(1,1-dimethylheptyl)-2-(phenylmethoxy)-benzene (CAS 70120-16-0)
- 2-methylpyridine-3-carbonitrile (CAS 1721-23-9)
- 7-Fluoro-4,4-dimethyl-1,2,3,4-tetrahydro-1,8-naphthyridin-2-one (CAS 846035-55-0)
- 6-Amino-3-bromo-2-fluorobenzoic acid hydrochloride (CAS 1637774-84-5)
- 5-Ethoxy-6-methoxy-2,3-dihydro-1H-inden-1-one (CAS 91496-80-9)
- 1,3-Difluoro-2-(phenylmethoxy)benzene (CAS 947279-21-2)
- 1-(6-Ethylpyrimidin-4-yl)piperidin-4-amine (CAS 1239786-88-9)
- Semaglutide impurity 107 (CAS CATO-C4X-2226107)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com